america was a fundamentally conservative country. anyone who didn't support this would have to deal with it. all of this happened just eight years ago. feels more distant after what played out this year in 2012. the incumbent president endorsed marriage equality. gay marriage started winning at the ballot box. 4 for 4 last month. polls show plurality and outright majority for gay marriage. it's not slowing the transformation of gay marriage. it's been rapid and profound. it's hard to think of a single issue. they have shifted in such a short period of time. one of the people is author dan savage. he's getting married in washington state today. it's the first day it's legal there. he sat down to talk with chris hayes to talk about it. their discussion, after this. [ male announcer ] citi turns 200 this year. in that time there've been some good days. and some difficult ones. but, through it all, we've persevered, supporting some of the biggest ideas in modern history. so why should our anniversary matter to you? because for 200 years,